Skip to content

O
OpenXG-RAN
Commit 4aa7fbf1 authored by winckel's avatar winckel
Browse files
Options

Added some TDD configuration parameters in eNB config file. 

Propagated eutra band into SIB 1.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5028 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent d8773fda
Hide whitespace changes
Inline Side-by-side
Showing with 77 additions and 43 deletions
openair2/COMMON/rrc_messages_types.h
View file @ 4aa7fbf1
...@@ -68,6 +68,7 @@ typedef struct RrcConfigurationReq_s { ...@@ -68,6 +68,7 @@ typedef struct RrcConfigurationReq_s {
paging_drx_t default_drx; paging_drx_t default_drx;
lte_frame_type_t frame_type; lte_frame_type_t frame_type;
int16_t eutra_band;
} RrcConfigurationReq; } RrcConfigurationReq;
// UE: NAS -> RRC messages // UE: NAS -> RRC messages
......
openair2/ENB_APP/enb_app.c
View file @ 4aa7fbf1
...@@ -86,6 +86,7 @@ static void configure_rrc(uint32_t enb_id, const Enb_properties_array_t *enb_pro ...@@ -86,6 +86,7 @@ static void configure_rrc(uint32_t enb_id, const Enb_properties_array_t *enb_pro
RRC_CONFIGURATION_REQ (msg_p).mnc = enb_properties->properties[enb_id]->mnc; RRC_CONFIGURATION_REQ (msg_p).mnc = enb_properties->properties[enb_id]->mnc;
RRC_CONFIGURATION_REQ (msg_p).default_drx = enb_properties->properties[enb_id]->default_drx; RRC_CONFIGURATION_REQ (msg_p).default_drx = enb_properties->properties[enb_id]->default_drx;
RRC_CONFIGURATION_REQ (msg_p).frame_type = enb_properties->properties[enb_id]->frame_type; RRC_CONFIGURATION_REQ (msg_p).frame_type = enb_properties->properties[enb_id]->frame_type;
RRC_CONFIGURATION_REQ (msg_p).eutra_band = enb_properties->properties[enb_id]->eutra_band;
itti_send_msg_to_task (TASK_RRC_ENB, enb_id, msg_p); itti_send_msg_to_task (TASK_RRC_ENB, enb_id, msg_p);
} }
......
openair2/ENB_APP/enb_config.c
View file @ 4aa7fbf1
...@@ -61,6 +61,8 @@ ...@@ -61,6 +61,8 @@
#define ENB_CONFIG_STRING_DEFAULT_PAGING_DRX "default_paging_drx" #define ENB_CONFIG_STRING_DEFAULT_PAGING_DRX "default_paging_drx"
#define ENB_CONFIG_STRING_FRAME_TYPE "frame_type" #define ENB_CONFIG_STRING_FRAME_TYPE "frame_type"
#define ENB_CONFIG_STRING_TDD_CONFIG "tdd_config"
#define ENB_CONFIG_STRING_TDD_CONFIG_S "tdd_config_s"
#define ENB_CONFIG_STRING_PREFIX_TYPE "prefix_type" #define ENB_CONFIG_STRING_PREFIX_TYPE "prefix_type"
#define ENB_CONFIG_STRING_EUTRA_BAND "eutra_band" #define ENB_CONFIG_STRING_EUTRA_BAND "eutra_band"
#define ENB_CONFIG_STRING_DOWNLINK_FREQUENCY "downlink_frequency" #define ENB_CONFIG_STRING_DOWNLINK_FREQUENCY "downlink_frequency"
...@@ -129,7 +131,7 @@ static int enb_check_band_frequencies(char* lib_config_file_name_pP, ...@@ -129,7 +131,7 @@ static int enb_check_band_frequencies(char* lib_config_file_name_pP,
int32_t uplink_frequency_offset, int32_t uplink_frequency_offset,
lte_frame_type_t frame_type) lte_frame_type_t frame_type)
{ {
int result = 0; int errors = 0;
if (band > 0) if (band > 0)
{ {
...@@ -140,26 +142,28 @@ static int enb_check_band_frequencies(char* lib_config_file_name_pP, ...@@ -140,26 +142,28 @@ static int enb_check_band_frequencies(char* lib_config_file_name_pP,
if (band == eutra_bands[band_index].band) if (band == eutra_bands[band_index].band)
{ {
uint32_t uplink_frequency = downlink_frequency + uplink_frequency_offset; uint32_t uplink_frequency = downlink_frequency + uplink_frequency_offset;
result = 1;
AssertError (eutra_bands[band_index].dl_min < downlink_frequency, result = 0, "Downlink frequency %u too low (%u) for band %d!", AssertError (eutra_bands[band_index].dl_min < downlink_frequency, errors ++,
downlink_frequency, eutra_bands[band_index].dl_min, band); "Failed to parse eNB configuration file %s, enb %d downlink frequency %u too low (%u) for band %d!",
AssertError (downlink_frequency < eutra_bands[band_index].dl_max, result = 0, "Downlink frequency %u too high (%u) for band %d!", lib_config_file_name_pP, enb_properties_index, downlink_frequency, eutra_bands[band_index].dl_min, band);
downlink_frequency, eutra_bands[band_index].dl_max, band); AssertError (downlink_frequency < eutra_bands[band_index].dl_max, errors ++,
"Failed to parse eNB configuration file %s, enb %d downlink frequency %u too high (%u) for band %d!",
AssertError (eutra_bands[band_index].ul_min < uplink_frequency, result = 0, "Uplink frequency %u too low (%u) for band %d!", lib_config_file_name_pP, enb_properties_index, downlink_frequency, eutra_bands[band_index].dl_max, band);
uplink_frequency, eutra_bands[band_index].ul_min, band);
AssertError (uplink_frequency < eutra_bands[band_index].ul_max, result = 0, "Uplink frequency %u too high (%u) for band %d!", AssertError (eutra_bands[band_index].ul_min < uplink_frequency, errors ++,
uplink_frequency, eutra_bands[band_index].ul_max, band); "Failed to parse eNB configuration file %s, enb %d uplink frequency %u too low (%u) for band %d!",
lib_config_file_name_pP, enb_properties_index, uplink_frequency, eutra_bands[band_index].ul_min, band);
AssertError (eutra_bands[band_index].frame_type == frame_type, result = 0, "Invalid frame type (%d/%d) for band %d!", AssertError (uplink_frequency < eutra_bands[band_index].ul_max, errors ++,
eutra_bands[band_index].frame_type, frame_type, band); "Failed to parse eNB configuration file %s, enb %d uplink frequency %u too high (%u) for band %d!",
lib_config_file_name_pP, enb_properties_index, uplink_frequency, eutra_bands[band_index].ul_max, band);
AssertFatal (result == 1, "Invalid settings for eNB %d in file %s!", enb_properties_index, lib_config_file_name_pP);
AssertError (eutra_bands[band_index].frame_type == frame_type, errors ++,
"Failed to parse eNB configuration file %s, enb %d invalid frame type (%d/%d) for band %d!",
lib_config_file_name_pP, enb_properties_index, eutra_bands[band_index].frame_type, frame_type, band);
} }
} }
} }
return result; return errors;
} }
const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
...@@ -174,7 +178,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -174,7 +178,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
int num_mme_address; int num_mme_address;
int i; int i;
int j; int j;
int parse_error = 0; int parse_errors = 0;
long int enb_id; long int enb_id;
const char* cell_type; const char* cell_type;
long int tac; long int tac;
...@@ -183,6 +187,8 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -183,6 +187,8 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
long int mnc; long int mnc;
const char* default_drx; const char* default_drx;
const char* frame_type; const char* frame_type;
long int tdd_config;
long int tdd_config_s;
const char* prefix_type; const char* prefix_type;
long int eutra_band; long int eutra_band;
double downlink_frequency; double downlink_frequency;
...@@ -234,7 +240,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -234,7 +240,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
if(setting != NULL) if(setting != NULL)
{ {
enb_properties_index = 0; enb_properties_index = 0;
parse_error = 0; parse_errors = 0;
num_enbs = config_setting_length(setting); num_enbs = config_setting_length(setting);
for (i = 0; i < num_enbs; i++) { for (i = 0; i < num_enbs; i++) {
setting_enb = config_setting_get_elem(setting, i); setting_enb = config_setting_get_elem(setting, i);
...@@ -259,7 +265,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -259,7 +265,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
&& config_setting_lookup_string(setting_enb, ENB_CONFIG_STRING_DEFAULT_PAGING_DRX, &default_drx) && config_setting_lookup_string(setting_enb, ENB_CONFIG_STRING_DEFAULT_PAGING_DRX, &default_drx)
) )
) { ) {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, %u th enb\n", "Failed to parse eNB configuration file %s, %u th enb\n",
lib_config_file_name_pP, i); lib_config_file_name_pP, i);
} }
...@@ -274,7 +280,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -274,7 +280,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
} else if (strcmp(cell_type, "CELL_HOME_ENB") == 0) { } else if (strcmp(cell_type, "CELL_HOME_ENB") == 0) {
enb_properties.properties[enb_properties_index]->cell_type = CELL_HOME_ENB; enb_properties.properties[enb_properties_index]->cell_type = CELL_HOME_ENB;
} else { } else {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for cell_type choice: CELL_MACRO_ENB or CELL_HOME_ENB !\n", "Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for cell_type choice: CELL_MACRO_ENB or CELL_HOME_ENB !\n",
lib_config_file_name_pP, i, cell_type); lib_config_file_name_pP, i, cell_type);
} }
...@@ -292,7 +298,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -292,7 +298,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
} else if (strcmp(default_drx, "PAGING_DRX_256") == 0) { } else if (strcmp(default_drx, "PAGING_DRX_256") == 0) {
enb_properties.properties[enb_properties_index]->default_drx = PAGING_DRX_256; enb_properties.properties[enb_properties_index]->default_drx = PAGING_DRX_256;
} else { } else {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for default_drx choice: PAGING_DRX_32..PAGING_DRX_256 !\n", "Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for default_drx choice: PAGING_DRX_32..PAGING_DRX_256 !\n",
lib_config_file_name_pP, i, default_drx); lib_config_file_name_pP, i, default_drx);
} }
...@@ -304,7 +310,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -304,7 +310,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
} else if (strcmp(frame_type, "TDD") == 0) { } else if (strcmp(frame_type, "TDD") == 0) {
enb_properties.properties[enb_properties_index]->frame_type = TDD; enb_properties.properties[enb_properties_index]->frame_type = TDD;
} else { } else {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for frame_type choice: FDD or TDD !\n", "Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for frame_type choice: FDD or TDD !\n",
lib_config_file_name_pP, i, frame_type); lib_config_file_name_pP, i, frame_type);
} }
...@@ -312,13 +318,31 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -312,13 +318,31 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
enb_properties.properties[enb_properties_index]->frame_type = FDD; // Default frame type enb_properties.properties[enb_properties_index]->frame_type = FDD; // Default frame type
} }
if(config_setting_lookup_int(setting_enb, ENB_CONFIG_STRING_TDD_CONFIG, &tdd_config)) {
enb_properties.properties[enb_properties_index]->tdd_config = tdd_config;
AssertError (tdd_config <= TDD_Config__subframeAssignment_sa6, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d illegal tdd_config %ld (should be 0-%d)!",
lib_config_file_name_pP, i, tdd_config, TDD_Config__subframeAssignment_sa6);
} else {
enb_properties.properties[enb_properties_index]->tdd_config = 3; // Default TDD sub-frame configuration
}
if(config_setting_lookup_int(setting_enb, ENB_CONFIG_STRING_TDD_CONFIG_S, &tdd_config_s)) {
enb_properties.properties[enb_properties_index]->tdd_config_s = tdd_config_s;
AssertError (tdd_config_s <= TDD_Config__specialSubframePatterns_ssp8, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d illegal tdd_config_s %ld (should be 0-%d)!",
lib_config_file_name_pP, i, tdd_config_s, TDD_Config__specialSubframePatterns_ssp8);
} else {
enb_properties.properties[enb_properties_index]->tdd_config_s = 0; // Default TDD S-sub-frame configuration
}
if(config_setting_lookup_string(setting_enb, ENB_CONFIG_STRING_PREFIX_TYPE, &prefix_type)) { if(config_setting_lookup_string(setting_enb, ENB_CONFIG_STRING_PREFIX_TYPE, &prefix_type)) {
if (strcmp(prefix_type, "NORMAL") == 0) { if (strcmp(prefix_type, "NORMAL") == 0) {
enb_properties.properties[enb_properties_index]->prefix_type = NORMAL; enb_properties.properties[enb_properties_index]->prefix_type = NORMAL;
} else if (strcmp(prefix_type, "EXTENDED") == 0) { } else if (strcmp(prefix_type, "EXTENDED") == 0) {
enb_properties.properties[enb_properties_index]->prefix_type = EXTENDED; enb_properties.properties[enb_properties_index]->prefix_type = EXTENDED;
} else { } else {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for prefix_type choice: NORMAL or EXTENDED !\n", "Failed to parse eNB configuration file %s, enb %d unknown value \"%s\" for prefix_type choice: NORMAL or EXTENDED !\n",
lib_config_file_name_pP, i, prefix_type); lib_config_file_name_pP, i, prefix_type);
} }
...@@ -349,12 +373,12 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -349,12 +373,12 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
} }
} }
enb_check_band_frequencies(lib_config_file_name_pP, parse_errors += enb_check_band_frequencies(lib_config_file_name_pP,
enb_properties_index, enb_properties_index,
enb_properties.properties[enb_properties_index]->eutra_band, enb_properties.properties[enb_properties_index]->eutra_band,
enb_properties.properties[enb_properties_index]->downlink_frequency, enb_properties.properties[enb_properties_index]->downlink_frequency,
enb_properties.properties[enb_properties_index]->uplink_frequency_offset, enb_properties.properties[enb_properties_index]->uplink_frequency_offset,
enb_properties.properties[enb_properties_index]->frame_type); enb_properties.properties[enb_properties_index]->frame_type);
setting_mme_addresses = config_setting_get_member (setting_enb, ENB_CONFIG_STRING_MME_IP_ADDRESS); setting_mme_addresses = config_setting_get_member (setting_enb, ENB_CONFIG_STRING_MME_IP_ADDRESS);
num_mme_address = config_setting_length(setting_mme_addresses); num_mme_address = config_setting_length(setting_mme_addresses);
...@@ -368,7 +392,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -368,7 +392,7 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
&& config_setting_lookup_string(setting_mme_address, ENB_CONFIG_STRING_MME_IP_ADDRESS_PREFERENCE, (const char **)&preference) && config_setting_lookup_string(setting_mme_address, ENB_CONFIG_STRING_MME_IP_ADDRESS_PREFERENCE, (const char **)&preference)
) )
) { ) {
AssertError (0, parse_error ++, AssertError (0, parse_errors ++,
"Failed to parse eNB configuration file %s, %u th enb %u th mme address !\n", "Failed to parse eNB configuration file %s, %u th enb %u th mme address !\n",
lib_config_file_name_pP, i, j); lib_config_file_name_pP, i, j);
} }
...@@ -400,13 +424,13 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) { ...@@ -400,13 +424,13 @@ const Enb_properties_array_t *enb_config_init(char* lib_config_file_name_pP) {
} }
enb_properties.number = num_enb_properties; enb_properties.number = num_enb_properties;
AssertError (enb_properties_index == num_enb_properties, parse_error ++, AssertError (enb_properties_index == num_enb_properties, parse_errors ++,
"Failed to parse eNB configuration file %s, mismatch between %u active eNBs and %u corresponding defined eNBs !\n", "Failed to parse eNB configuration file %s, mismatch between %u active eNBs and %u corresponding defined eNBs !\n",
lib_config_file_name_pP, num_enb_properties, enb_properties_index); lib_config_file_name_pP, num_enb_properties, enb_properties_index);
AssertFatal (parse_error == 0, AssertFatal (parse_errors == 0,
"Failed to parse eNB configuration file %s, found %d error%s !\n", "Failed to parse eNB configuration file %s, found %d error%s !\n",
lib_config_file_name_pP, parse_error, parse_error > 1 ? "s" : ""); lib_config_file_name_pP, parse_errors, parse_errors > 1 ? "s" : "");
return &enb_properties; return &enb_properties;
} }
......
openair2/ENB_APP/enb_config.h
View file @ 4aa7fbf1
...@@ -85,6 +85,8 @@ typedef struct Enb_properties_s { ...@@ -85,6 +85,8 @@ typedef struct Enb_properties_s {
/* Physical parameters */ /* Physical parameters */
lte_frame_type_t frame_type; lte_frame_type_t frame_type;
uint8_t tdd_config;
uint8_t tdd_config_s;
lte_prefix_type_t prefix_type; lte_prefix_type_t prefix_type;
int16_t eutra_band; int16_t eutra_band;
uint32_t downlink_frequency; uint32_t downlink_frequency;
......
openair2/RRC/LITE/MESSAGES/asn1_msg.c
View file @ 4aa7fbf1
...@@ -503,7 +503,12 @@ uint8_t do_SIB1(uint8_t Mod_id, LTE_DL_FRAME_PARMS *frame_parms, uint8_t *buffer ...@@ -503,7 +503,12 @@ uint8_t do_SIB1(uint8_t Mod_id, LTE_DL_FRAME_PARMS *frame_parms, uint8_t *buffer
(*sib1)->cellSelectionInfo.q_RxLevMin=-65; (*sib1)->cellSelectionInfo.q_RxLevMin=-65;
(*sib1)->cellSelectionInfo.q_RxLevMinOffset=NULL; (*sib1)->cellSelectionInfo.q_RxLevMinOffset=NULL;
(*sib1)->freqBandIndicator = 7; (*sib1)->freqBandIndicator =
#if defined(ENABLE_ITTI)
configuration->eutra_band;
#else
7;
#endif
schedulingInfo.si_Periodicity=SchedulingInfo__si_Periodicity_rf8; schedulingInfo.si_Periodicity=SchedulingInfo__si_Periodicity_rf8;
...@@ -518,11 +523,11 @@ uint8_t do_SIB1(uint8_t Mod_id, LTE_DL_FRAME_PARMS *frame_parms, uint8_t *buffer ...@@ -518,11 +523,11 @@ uint8_t do_SIB1(uint8_t Mod_id, LTE_DL_FRAME_PARMS *frame_parms, uint8_t *buffer
if (configuration->frame_type == TDD) if (configuration->frame_type == TDD)
#endif #endif
{ {
(*sib1)->tdd_Config = CALLOC(1,sizeof(struct TDD_Config)); (*sib1)->tdd_Config = CALLOC(1,sizeof(struct TDD_Config));
(*sib1)->tdd_Config->subframeAssignment=frame_parms->tdd_config; //TDD_Config__subframeAssignment_sa3; (*sib1)->tdd_Config->subframeAssignment = frame_parms->tdd_config;
(*sib1)->tdd_Config->specialSubframePatterns=0;//frame_parms->tdd_config_S;//TDD_Config__specialSubframePatterns_ssp0; (*sib1)->tdd_Config->specialSubframePatterns = frame_parms->tdd_config_S;
} }
(*sib1)->si_WindowLength=SystemInformationBlockType1__si_WindowLength_ms20; (*sib1)->si_WindowLength=SystemInformationBlockType1__si_WindowLength_ms20;
......
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.sfr.sud.conf
View file @ 4aa7fbf1
...@@ -23,6 +23,8 @@ eNBs = ...@@ -23,6 +23,8 @@ eNBs =
////////// Physical parameters: ////////// Physical parameters:
frame_type = "TDD"; frame_type = "TDD";
tdd_config = 3;
tdd_config_s = 0;
prefix_type = "NORMAL"; prefix_type = "NORMAL";
eutra_band = 33; eutra_band = 33;
downlink_frequency = 1907.6e6; downlink_frequency = 1907.6e6;
......
targets/SIMU/USER/oaisim_functions.c
View file @ 4aa7fbf1
...@@ -325,10 +325,8 @@ void get_simulation_options(int argc, char *argv[]) { ...@@ -325,10 +325,8 @@ void get_simulation_options(int argc, char *argv[]) {
case 'C': case 'C':
oai_emulation.info.tdd_config = atoi (optarg); oai_emulation.info.tdd_config = atoi (optarg);
if (oai_emulation.info.tdd_config > 6) { AssertFatal (oai_emulation.info.tdd_config <= TDD_Config__subframeAssignment_sa6, "Illegal tdd_config %d (should be 0-%d)!",
printf("Illegal tdd_config %d (should be 0-6)\n", oai_emulation.info.tdd_config); oai_emulation.info.tdd_config, TDD_Config__subframeAssignment_sa6);
exit (-1);
}
break; break;
case 'D': case 'D':
...@@ -601,8 +599,9 @@ void get_simulation_options(int argc, char *argv[]) { ...@@ -601,8 +599,9 @@ void get_simulation_options(int argc, char *argv[]) {
/* Update some simulation parameters */ /* Update some simulation parameters */
oai_emulation.info.frame_type = enb_properties->properties[0]->frame_type; oai_emulation.info.frame_type = enb_properties->properties[0]->frame_type;
oai_emulation.info.tdd_config = enb_properties->properties[0]->tdd_config;
oai_emulation.info.tdd_config_S = enb_properties->properties[0]->tdd_config_s;
oai_emulation.info.extended_prefix_flag = enb_properties->properties[0]->prefix_type; oai_emulation.info.extended_prefix_flag = enb_properties->properties[0]->prefix_type;
} }
} }
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment